Pith Number

pith:OMQYA5BJ

pith:2011:OMQYA5BJ6LSRR64WKLMCVFDHIM

not attested not anchored not stored refs pending

Competitively tight graphs

Boram Park, Jung Yeun Lee, Suh-Ryung Kim, Yoshio Sano

arxiv:1112.6203 v2 · 2011-12-28 · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OMQYA5BJ6LSRR64WKLMCVFDHIM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T03:03:57.086632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7321807429f2e518fb9652d82a946743346e6a031838b182610407049c6f0c62

Aliases

arxiv: 1112.6203 · arxiv_version: 1112.6203v2 · doi: 10.48550/arxiv.1112.6203 · pith_short_12: OMQYA5BJ6LSR · pith_short_16: OMQYA5BJ6LSRR64W · pith_short_8: OMQYA5BJ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/OMQYA5BJ6LSRR64WKLMCVFDHIM \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 7321807429f2e518fb9652d82a946743346e6a031838b182610407049c6f0c62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efe0ddc65af6f549b18696bb52a474082792797159e5153ae3bfdb6ef9dc0902",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-12-28T23:29:26Z",
    "title_canon_sha256": "7a41cb7a390d3cc068f0fcc7fdddd692442d30abce4226e3a2f0c9694c19fe12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.6203",
    "kind": "arxiv",
    "version": 2
  }
}